A Japanese plant worker has died in a freak accident after 13 tonnes of molten metal were tipped all over him.

Kazuki Tada, 23, was working on Saturday morning beneath a huge bucket containing an alloy that had been heated to around 1,300 degrees Celsius (2,400 Fahrenheit) at a manufacturing plant, Japan Today reported.

boiling metal

The bucket, which was suspended in mid air, overbalanced, pouring the molten metal on Tada, police said.

An investigation into the accident is under way in southwestern Japan, a local police spokesman said, according to the new agency AFP.